EPJ Web of Conferences
Volume 73, 2014MENU 2013 – 13th International Conference Meson-Nucleon Physics and the Structure of the Nucleon
|Number of page(s)||4|
|Published online||09 June 2014|
The double polarization program of CBELSA/TAPS
Helmholtz-Institut für Strahlen- und Kernphysik, Nussallee 14–16, 53115 Bonn, Germany
a e-mail: email@example.com
Published online: 9 June 2014
The excitation spectrum of the proton consists of resonances with substancial width which are often strongly overlapping and are therefore difficult to disentangle. To determine the exact contributions and identify these resonances, a partial wave analysis solution has to be found. For a complete experiment, which leads to an unambiguous solution, several single and double polarization observables are needed. With the Crystal Barrel/TAPS experiment at ELSA, the measurement of double polarization observables in different reactions is possible by using a circularly or linearly polarized photon beam on a transversely or longitudinally polarized butanol target.
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